| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Adiabatic evolution of optical beams of arbitrary shapes in nonlocal nonlinear media |
| Jiarui Che(车佳瑞)1,2, Yuxin Zheng(郑喻心)1,2, Guo Liang(梁果)1,2,†, and Qi Guo(郭旗)1,‡ |
1 School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510631, China;
2 School of Electrical and Electronic Engineering, Shangqiu Normal University, Shangqiu 476000, China |
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Abstract We discuss evolution of Hermite-Gaussian beams of different orders in nonlocal nonlinear media whose characteristic length is set as different functions of propagation distance, using the variational approach. It is proved that as long as the characteristic length varies slowly enough, all the Hermite-Gaussian beams can propagate adiabatically. When the characteristic length gradually comes back to its initial value after changes, all the Hermite-Gaussian beams can adiabatically restore to their own original states. The variational results agree well with the numerical simulations. Arbitrary shaped beams synthesized by Hermite-Gaussian modes can realize adiabatic evolution in nonlocal nonlinear media with gradual characteristic length.
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Received: 25 March 2023
Revised: 09 May 2023
Accepted manuscript online: 18 May 2023
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PACS:
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.65.Jx
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(Beam trapping, self-focusing and defocusing; self-phase modulation)
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| Fund: Project supported by the Key Research Fund of Higher Education of Henan Province, China (Grant No. 23A140021), the Open Subject of the Key Laboratory of Weak Light Nonlinear Photonics of Nankai University (Grant No. OS21-3), and the International Scientific and Technological Cooperation Projects of Henan Province, China (Grant No. 232102520001). |
Corresponding Authors:
Guo Liang, Qi Guo
E-mail: liangguo0916@163.com;guoq@scnu.edu.cn
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Cite this article:
Jiarui Che(车佳瑞), Yuxin Zheng(郑喻心), Guo Liang(梁果), and Qi Guo(郭旗) Adiabatic evolution of optical beams of arbitrary shapes in nonlocal nonlinear media 2023 Chin. Phys. B 32 104207
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